xref: /freebsd/sys/contrib/device-tree/Bindings/rtc/nvidia,tegra20-rtc.yaml (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/rtc/nvidia,tegra20-rtc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: NVIDIA Tegra real-time clock
8
9maintainers:
10  - Thierry Reding <thierry.reding@gmail.com>
11  - Jon Hunter <jonathanh@nvidia.com>
12
13description: |
14  The Tegra RTC maintains seconds and milliseconds counters, and five
15  alarm registers. The alarms and other interrupts may wake the system
16  from low-power state.
17
18properties:
19  compatible:
20    oneOf:
21      - const: nvidia,tegra20-rtc
22      - items:
23          - enum:
24              - nvidia,tegra30-rtc
25              - nvidia,tegra114-rtc
26              - nvidia,tegra124-rtc
27              - nvidia,tegra210-rtc
28              - nvidia,tegra186-rtc
29              - nvidia,tegra194-rtc
30              - nvidia,tegra234-rtc
31          - const: nvidia,tegra20-rtc
32
33  reg:
34    maxItems: 1
35
36  interrupts:
37    maxItems: 1
38
39  clocks:
40    maxItems: 1
41
42  clock-names:
43    items:
44      - const: rtc
45
46additionalProperties: false
47
48required:
49  - compatible
50  - reg
51  - interrupts
52  - clocks
53
54examples:
55  - |
56    timer@7000e000 {
57        compatible = "nvidia,tegra20-rtc";
58        reg = <0x7000e000 0x100>;
59        interrupts = <0 2 0x04>;
60        clocks = <&tegra_car 4>;
61    };
62